Crystal Knot Magic
Knotting a crystal net is very easy if you are able to use your fingers for this kind of crafting.
They are often called crystal "wraps" and many tutorials can be found on Youtube.
There are many, many ways to make a crystal net. The style you use determines the final appearance. More importantly for us, the style you use determines how many knots there will be, and their size.
We can draw on four common elements of magic: Crystal/mineral correspondences, color correspondences, numerology, and knot magic.
The stone (or other object) is like the battery which holds and radiates power. The object you net should correspond to your core intent.
The color of cord or thread you use can modify or hone your intent. For example, if using clear quartz, the color correspondence might be doing most of the work.
Then again, this spell will work with cotton twine and a river stone, so just do whatever suits you.
The total number of cords you use dictates how many knots total will exist in your spell. Crystal nets are made by tying two strands of cord together. If you use four cords, you will have eight working ends, and therefore you will tie four knots per row. If you have five cords, you will have ten working ends, and you will need to tie five knots per row. I align my numerology to the number of knots, not strands, because the knots themselves are holding the magic.
The knots are used to tie intent and bind power. I create most of my charms in a style that has one big starter knot at the top and one big finishing knot at the bottom. There are tons of ways to utilize knots in this project. The first knot can hold the only intent, while the rest bind powers to support it. Or the intent can be split into its composite parts and each part gets its own knot. Or every single knot can have something unique, or they can all be identical... lots of options.
Conceptually, the inner object is the focal point or battery of the spell. The knots can be understood as tools that the object uses to carry out your will, instructions to guide the object in its work, vessels that carry additional power (like tidepools on a beach), or tangles that capture and bind up unwanted forces.
To perform this sort of magic:
1. Learn how to make the nets first from an arts and crafts perspective :) you can cut the cording off to re-use the same stone later. It is really frustrating to try and do a craft in a ritual headspace if you have to learn the craft simultaneously!
2. Gather up your cording and object to be netted. Do any ritual techniques you prefer to prepare them.
3. Decide how you want your intent to be tied in. Do you want to use the same phrase for each knot? Do you want to chant your intent continuously while you do many knots? Etc.
4. Make the crystal net in your ritual headspace/magic zone. Pour your intent into each knot in whatever methods you choose.
5. I recommend making the final knot of your project into the seal which completes and finishes the amulet ("so mote it be," "as my will it has been done," etc).
6. If you did not raise and direct energy during the spell, ensure the amulet is charged afterwords. Like all amulets and talismans, it requires feeding and repowering as time goes on.